Home / 20,754,685.80-31,048,047.90-18,235,261.80

Finding the Fourth Proportional to 20,754,685.80, 31,048,047.90 and 18,235,261.80

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Solution

The fourth proportional to 20,754,685.80, 31,048,047.90 and 18,235,261.80 is: 27,279,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,685.80 : 31,048,047.90 = 18,235,261.80 : x
  2. Step 2: Convert to fraction form
    20,754,685.80/31,048,047.90 = 18,235,261.80/x
  3. Step 3: Cross multiply
    20,754,685.80x = 31,048,047.90 × 18,235,261.80
  4. Step 4: Simplify right side
    20,754,685.80x = 566,169,281,835,440.25
  5. Step 5: Solve for x
    x = 566,169,281,835,440.25/20,754,685.80
  6. Step 6: Final answer
    x = 27,279,106.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.